The fan is
large source of noise, but since it pumps out 50CFM of airflow this is to be
expected. We could have tested this heatsink with a number of smaller fans, but
since this is a performance heatsink we thought it best to illustrate the ultimate level
of performance achievable. We also thought it worth while to acoustically show you the penalty you'll
pay in terms of noise ;-) Listen to this heatsink in operation for yourself by clicking on
the little headphones and downloading the 10 second MP3 recording.

FrostyTech Acoustic
Sampling Chamber

Standard Waveform view of a 10 second
recording. Click on the headphones to listen to an MP3
recording of this heatsink in operation. Only on FrostyTech.com.

Sound Level
Measurements:

Listening to the actual noise a heatsink makes
allows you to hear what pure numbers alone cannot get across. To further
emphasize FrostyTech's reliance on cold hard facts when evaluating a heatsink,
we also take Decibel readings with a sound level meter. These results may be
higher than the manufacturer's listed specs, but then again these are real world
measurements.

FrostyTech Sound
Level Results

-

Manufacturer

Model

Noise Level

Scale

verax

P14

32.1 dB

Quiet

Verax

P11T

35.3 dB

Coolermaster

HHC-L61

42.2 dB

Coolermaster

HSC-V62

43.7 dB

Spire

5F263

44.5 dB

JMC Prducts

400023

46.6 dB

Zalman

All Flower HSF

47.4/28.9 dB

Taisol

CGK760092

48.4 dB

GlacialTech

Igloo 2310

49.4 dB

Cho-Liang

CB0307U-17

49.5 dB

Arkua

628

50.7 dB

Noisecontrol

Silverado

50.8 dB

Tocools

Novasonic

52.2 dB

NengTyi

XPC5000

52.4 dB

Spire

5T235

52.5 dB

Ajigo

MF014021

52.8 dB

Thermal Integration

TI-V77L

53.0 dB

Coolink

H1T

53.4 dB

Ajigo

SF017011

53.6 dB

GlacialTech

Igloo 2400

53.9 dB

Tocools

Crown

54.5 dB

Cybercooler

P5750

55.4 dB

Sibak

AT01515B

55.8 dB

Sibak

AE01625B

58.2 dB

AVC

Tundra 2

58.4 dB

Sibak

AC02625B

59.7 dB

Coolermaster

HHC-001

59.9 dB

Sibak

AC06725TH

62.4 dB

Dynatron

DY1206BH-625

63.3 dB

Dynatron

DC1206BMP

65.1 dB

Thermalright

SLK800

66.2 dB

Thermalright

AX-7

66.4 dB

louder

There you
have it, the SLK800 with the 38mm thick Delta comes in
at 66.2 dB in our real world tests. That is pretty damn loud.